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Finding the Fourth Proportional to 37,322.40, 55,983.60 and 21,554.40

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Solution

The fourth proportional to 37,322.40, 55,983.60 and 21,554.40 is: 32,331.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,322.40 : 55,983.60 = 21,554.40 : x
  2. Step 2: Convert to fraction form
    37,322.40/55,983.60 = 21,554.40/x
  3. Step 3: Cross multiply
    37,322.40x = 55,983.60 × 21,554.40
  4. Step 4: Simplify right side
    37,322.40x = 1,206,692,907.84
  5. Step 5: Solve for x
    x = 1,206,692,907.84/37,322.40
  6. Step 6: Final answer
    x = 32,331.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.